Impact of Retained Ureteral Stents on Long-Term Renal Function.

Introduction: The current literature does not provide any data regarding the rate of chronic kidney disease associated with retained ureteral stents. Thus, we determined the rates of major morbidities such as chronic kidney disease and severe urinary tract infection caused by retained stents.

Methods: We retrospectively reviewed all records of patients at our institution who underwent ureteral stent placement and ureteral stent removal between January 2003 and October 2016.

Robot-assisted Partial Cystectomy for Treatment of Inflammatory Myofibroblastic Tumor of the Bladder.

Inflammatory myofibroblastic tumors rarely occur in the urinary bladder. These masses follow an indolent course, but due to their histologic similarities to more malignant types of bladder masses, they must be differentiated with immunohistochemical staining. Once diagnosed, the mainstay of treatment for these masses is surgical resection.

Risk factors for relapse in stage I non-seminomatous germ-cell tumors: preliminary results of the German Multicenter Trial. German Testicular Cancer Study Group.

Risk factor analysis to identify low-risk patients for occult metastatic disease (vascular invasion, percentage embryonal carcinoma, MIB-I proliferation rate) yields reliable results if performed by experts. A correct prediction is possible at the 90% level. Similar accuracy, however, may be achieved if the computed tomography (CT) staging is optimized and the evaluation performed by an experienced investigator.

Prognostic factors in patients with pathological stage I non-seminomatous testicular germ cell tumors and tumor recurrence during follow-up.

Clinical staging in patients with stage I non-seminomatous germ cell tumors (NSGCTs) of the testis fails in 30% to correctly assess pathological stage since microscopic and small-volume retroperitoneal disease is not detectable on computed tomography of the abdomen. Patients staged by retroperitoneal lymph node dissection as pathological stage I incur a distant (chest or serological) tumor relapse rate of 7-15% during follow-up. Recently, we reported on new risk factors as predictors of pathological stage by flow cytometric DNA analysis in clinical stage I patients.

Neovascularization in clinical stage A testicular germ cell tumor: prediction of metastatic disease.

Increased numbers of blood vessels (angiogenesis or neovascularization) in certain primary tumors correlates with an increased risk for metastatic disease. We therefore conducted a blinded review of the resected testicular germ cell tumors of 65 clinical stage A patients to evaluate the usefulness of angiogenesis in identifying those patients with clinically occult nodal metastases (pathological stage B). Angiogenesis was assessed in the primary tumors using an immunohistochemical stain for factor VIII-related antigen assay for quantitation of microvessel counts.